Shock mount for electric regulators



Aug. 8, 1950 w. H. STRA CENER EI'AL 2,518,193

SHOCK MOUNT FOR ELECTRIC REGULATORS Filed Nov. 22, 1948 m as Q l l f INVENTORS WILL/AM H. STRACENER PAUL F BECHBERGER ATTORNEY Patented Aug. 8, 1950 UNITED STATES PATENT oF-rlc-E 2, 51s,19i; sHocK 'Motm'r FOR ELECTRIC REGULATORS Application 'liloveniber 22, 1948, Serial *No. 61,342

claims.

1 The present epplleatian relates shock m unt for a tarpon Heretorzi're two point inv shock inount's have been used f carbon pile'regtleter. "l llis't" of s o r has been sauna t be inherently at f it is below and art the center are aylty the carbon pile erra eaused re me-auntie}; "or "the regulated output voltage "when the amplitude "of vibration of thee-arbor; was ncreas d. I Numerals ti'ials disclosed that high arrlplltude vibration, either vertical or horizontal, transverse to the pile axis, caused eliant, but not objectionable modulation bf the regulated output voltage. However, vibration along the axl of the pile caused excessive in od'ulatioh bf the re'giilate'd voltage. t v, v a

In order to avoid the latter l'tionsanovel type of shock mount was'con (1 wherein the carbon pile is mounted rigidly along axes transverse (vertically and horizonta ly) tea the pile axis, but with relative 'f'r'edor'r'l 'along the axis of the carbon pile. This inb'l'lfit was "along a plane through the center of gravity or the carbon pile regulator and its suppe-rtsethat t art-era pile remains substantially undirected under var ing vibrator'ly conditions; v a

An object of the invention therefore, ijs'tb r'ovide a novel shock ritual; "for a carbon pile regulator wherein the pile is moontea rigidly along axes transverse (vertically and horizontally) [to the pile axis but with fela'tite freedom alone the axis of the pile. g t g The above and other objct'sand feature -or the invention will appear more "fully hereinafter from a consideration of the following description taken in connection with the a cramming drawing wherein one embodiment "of the invention is illustrated by way of example.

In the drawing I I Figure 1 is a side elevatioiial view of a novel shock mount in assembled relation with a "carbon pile regulator and mounting bracket.

Figure 2 is a top plan view of the regulator and shock mount of Figure 1 certain parts broken away to better illustrate t e Figure 3 is an en arged detail see 'onal View one or the hotel ring 'ir'l'olih tl'ngs of the invention. I p I Referring to the drawing or Figure'z, ther is shown a carbon pile regulator or U he smeal'letl diaphragm spring t pe as 'al'se ese'a are claimed in the cop'ending e plicati'on Serial No.

612,6 1, filed ugust 25, 1945153; Williani G. Nild, now Patent No. 2,481,771, i ed Sep ember 13, 1949, and assigned to the assignee "or the present application. 7

There is provided in the latter regulator a bottom plate I on -which is mounted a casing 2. The bottom plate I and casing 2 are formed of a suitable ferro-magnetic material. A core of silnilar inaterial projects from the batters plate linto an electrb'nlagnetic winding 1 wanna apart the core 5 and pesitrorrea in the deem" i tioned on the casing '2 is an annu ar fl i J ber l0 er 'a ho'using l2 which is "fastened to the bottom plate I hysuitable s c revvs ml one olwhl'eh is shown in the drawing. v

v e housing l zm y pe of'atype's'li'ch as's m'wn in 'U s. l'ater tno. "2,427,305, granted "ember 23, 1947 to William "'G Neild and assigned to Bendix Aviation Corporation.

Mounted within the housing I2 is a hon-cone ducting tube l5 or a suitable refractor material such as porcelain or L The tub'lll'ar member I 5 carries carbon discs 17 to form a Carbon pile. A contactoi rnmberilll iis positioned between one end of the carbon pile I! and an armatur plate 2t. The eerr'ta'e'ter member is positioned ii; a ring-shaped securing in'einber 23 mounted on the arnaature plate The armature lp l-a't'e zL as shown in Figure 2, is 'pbiitic'ned at one side of 'a diaphragm "t pe "s ring fzs which s ele'm 'ea between the armature plate 2l the ring member 23. An annular edge portion of the diaphragm type spring '25 is clamped to "a ring filer-flber '27 as set forth the a dreneteaeopendrng application Serial No. 312,691; filed Augu st 5, 1945 by William Neild, now Patent No,

2,481,771. issued Septelnber "13-, 1949., and assigned to the assignee ofthe present application.

It is notable that the annular edge of the diaphragm 25 is fixedly mounted in the annular ringll and extends across the ring 21 suspending the armature 21 therein. Ah axial movement of the armature 2| is accommodated by suitable kinks or corrugations formed in the diaphragm 25. n I t It has been found that byproviding the dia: phragm 25 or suitable materialand thickness and the corrugations of proper depth basic :correspondence with the varying pull ot the magnet 1 may be effected. A wave washerflfl or other suitable means may be provided to bias the ring 2] toward casing 2 to prevent rotation or shift of position of the annular ring 21 from the effects of vibration. I w Y,

At the opposite end of the caljbon pile I! there is provided a second contactor which inay be suitably adjusted by a screw member 33 positioned in "a cap 35 fastened to the housing I2.

A removable cover 3'l -is arranged to prevent accidental adjustment of the-screw. n I

The foregoing structure of the carbon pile regulator is claimed and disclosed in greater detail in the :copending U. s. application Serial No.

612,691; filed August 25, 1946 by William G. 'Neild, now Patent No. 2:481571, issued September 1-3; 1949; and assigned to the assignee of the present application.

The subifect niattei' *ojfthe present invention is directed to a novel type of shock mount for such a regulator wherein the carbon pile regulator assembly is mounted rigidly along the axes transverse (vertically and horizontally) to the pile axis, but with relative freedom along the axis of the pile ll. This novel shock mount is along a plane through the center of gravity of the carbon pile regulator and its support 40.

Its support 40, as shown in Figure 1, projects from the base of the carbon pile regulator and is fastened by suitable screws 42 to a mounting plate 45 having projecting ear portions 61 and 49, as shown in Figure 2, which extend in parallel spaced relation at one side of the regulator.

Similar ear portions SI and 53 extend from the base plate 45 at the opposite side of the regulator, as shown in Figures 1 and 2.

Projecting through the ear portions 41 and 49 is a polished rod 55. Similarly projecting through the ear portions and 53 is a polished rod 51. The rods 55 and 51 are carrie in the ear portions 41 and 49, and 5| and, 53, respectively, by suitable O-rings formed of a resilient rubber-like plastic, one of which is shown in Figure 3 and indicated by numeral 59. The O-ring 59 is positioned in the ear portion 4'. and is held in place by suitable end plates 6! and 63 slightly spaced from rod 55 and permitting a more or less degree of rolling action between the O-ring 59 and the rod 55. The rolling action occurs upon initial movement of the supporting ears 4'! and 49 and regulator assembly relative to rod 55 followed thereafter by a sliding action.

Corresponding end plates and O-ring mounting are provided for each of the ears 49, 5!, and 53 supporting the polished rods 55 and 51. The polished rods 55 and 51 are lubricated by a suitable grease or oil. A mid-point stop ring 65 is affixed to the polished rod 55 by suitable set screws at adjacent quadrants, one of which is indicated at 61. Two bulbous rubber snubbers 69 and l! are mounted at either side of the stop ring 65 on the rod 55 and between the ear portions 41 and 49, respectively, so as to limit the travel of the ears 41 and 49 On the rod 55 and to introduce damping into the assembly.

A similar mid-point stop ring is affixed to the pol shed rod 57 by set screws '16 and H at adjacent quadrants. bers l8 and BI are mounted at either side of the stop rin 15 on the rod 5'! and between the ears 5! and respectively, to cooperate in limiting the travel of the ears 5! and 53 and also to introduce damping into the assembly. The rods 55 and 5?, as shown in Figure l, are mounted between a suitable base assembly including a mounting plate 83 and a projecting flange 85 fastened by suitable rivets 81. The rods are fastened in the latter mounting assembly by suitable nuts, two of which are indicated in Figure 1 by the numerals 89 and 9|.

It will be seen from the foregoing that while the regulator assembly is substantially rigidly mounted along axes transverse (vertically and horizontally) to the pile axis, the mounting plate '45, and respective rods 55 and 51, permit relative freedom of movement of the regulator along the axis of the pile I! so as to reduce the effects of vibration upon the regulator and along theaxis of the carbon pile l1.

Although only one embodiment of the invention has been illustrated and described, various changes in the form and relative arrangements of the parts may be made to suit requirements.

What is claimed is:

1. For use with a mechanism including 9. cas- Like bulbous rubber snub-- ing and variable resistance carbon pile discs adjustably mounted in said casing; a shock mount assembly for said casing, comprising, in combination, a mounting plate afiixed to said casing and extending transverse the axis of said carbon pile, a first pair of ear portions projecting from one end of the mountingplate in spaced relation, a second pair of ear portions projecting from the other end of the mounting plate in spaced relation, a first rod slidably associated with and extending through said first pair of ear portions in parallel relation to the axis of said carbon pile, a second rod slidably associated with and extending through said second pair of ear portions in parallel relation to the axis of said carbon pile and at the opposite side thereof, a mid-point stop ring afllxed to each of said rods intermediate the opposite ends thereof and between the associated ear portions, a pair of bulbous rubber snubbers positioned on each of said rods, one of said bulbous rubber snubbers between each of the ear portions and the mid-point stop ring of the associated rod so as to limit the travel of the ear portions on the rod associated therewith and to introduce damping into the shock mount assembly.

2. The combination defined by claim 1 including resilient rubber-like plastic ring members to support each ear portion on its associated rod and each ring member eifecting a rolling sliding movement relative to its associated rod upon vibratory movement of the mechanism casing along the axis of said carbon pile.

3. A shock mount for a carbon pile regulator assembly, comprising means to rigidly mount the assembly along axes transverse the pile axis, and other means to resiliently support the regulator assembly along the axis of the carbon pile.

4. The combination defined by claim 3 in which said other means includes a pair of rods extending parallel to the axis of the pile and slidably mounting the assembly with relative freedom along the axis of the carbon pile, and resilient.

means opposing movement of said assembl on said rods.

5. The combination defined by claim 3 in which said other means includes a pair of rods extending parallel to the axis of the pile and slidably mounting the assembly with relative freedom along the axis of the carbon pile, and bulbous rubber snubbers afllxed to each of said rods and resiliently opposing movement of said assembly on said rods.

6. The combination defined by claim 3 in which said mounting means includes resilient ring members to permit vibratory movement of the regulator assembly along the axis of the carbon pile.

7. A shock mount for a carbon pile regulator assembly, comprising a pair of rods extending parallel to the axis of the pile, resilient ring members cooperating with said rods so as to slidably mount the assembly with relative freedom alonz the axis of the carbon pile, a pair of bulbous rubber snubbers positioned on each of said rods, a mid-point stop ring aflixed to said rod and limiting movement of said bulbous rubber snubbers with relation to the associated rod, and said bulbous rubber snubbers resiliently opposing movement of said assembly along said rods.

WILLIAM H. STRACENER. PAUL F. BECHBERGER.

No references cited. 

